A drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel

Abstract

This utility model relates to a drilling device for a flange hole connecting the end face of a hydraulic cylinder, comprising: a small frame, an electric push rod, fixed guide rails, a drag table, a power head, a sensor assembly, a drill jig, a drill bit, a drill jig fixing bolt assembly, a clamp assembly, a large frame, a cylinder, and a center frame. The small frame is fixed to the large frame, and two fixed guide rails are provided on the small frame. The housing of the electric push rod is fixed to the small frame, and the push rod of the electric push rod is connected to the electric push rod fixing hole of the drag table. The drill bit is fixed to the drill chuck of the power head, and the clamp assembly is fixed to the cylinder (12). The drill jig is connected and fixed to the clamp assembly. The electric push rod pushes the drill bit to drill a hole in the cylinder on the drill jig. This drilling device for a flange hole connecting the end face of a hydraulic cylinder is reasonably designed, compact in structure, easy to operate, accurate and reliable in drilling, has good interchangeability, and high positioning accuracy.

Description

Technical Field

[0001] This utility model relates to a drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel. Background Technology

[0002] Existing long-cylinder hydraulic cylinders typically use flange connections to connect the guide sleeve to the cylinder barrel, which facilitates cylinder assembly and maintenance. However, machining the end face holes of the cylinder cannot be done with ordinary drilling machines. Using a conventional drilling machine requires raising the machine to a height greater than the cylinder barrel length or digging a hole in the ground to place the cylinder inside. However, the cylinder length varies, further complicating the raising of the drilling machine and the depth of the hole. Sometimes, a hand drill with a drill jig is used, but while these methods can achieve the drilling, they have significant limitations in efficiency and machining quality, and also increase manufacturing costs. Therefore, the existing methods and equipment for drilling the flange holes on the cylinder barrel end face need improvement. Utility Model Content

[0003] The purpose of this utility model is to provide a drilling device for connecting flange holes on the end face of a hydraulic cylinder.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a drilling device for connecting flange holes on the end face of a hydraulic cylinder, comprising: a small frame 1, an electric push rod 2, fixed guide rails 3, a platform 4, a power head 5, a sensor assembly 6, a drill jig 7, a drill bit 8, a drill jig fixing bolt assembly 9, a clamp assembly 10, a large frame 11, a cylinder 12, a center frame 13, and an axial limiting assembly 14. The small frame 1 is fixed on the large frame 11, and two fixed guide rails 3 are provided on the small frame 1. Two linear bearings 403 on the platform 4 are connected to the two fixed guide rails 3. The power head 5 is positioned on the platform 4 through a platform fixing hole 401. The housing of the electric push rod 2 is fixed on the frame, and the push rod of the electric push rod 2 is connected to the electric push rod fixing hole 402 on the platform 4. The head 8 is fixed on the drill chuck 501 of the power head 5. The sensor assembly 6 is fixed on one side of the small frame and can control the drilling depth. The two center frames 13 are positioned and fixed at the end of the large frame 11 away from the small frame 1. The cylinder 12 is positioned and clamped in the two center frames 13 and can rotate in the center frames 13 but cannot move axially. The clamp assembly 10 is fixed to the cylinder 12 by the upper clamp 1001, the clamp clamping bolt assembly 1002 and the lower clamp 1003. The positioning stop circle 702 of the drill jig 7 is positioned on the inner hole of the cylinder 12. The drill jig fixing hole 701 is connected and fixed together with the clamp fixing hole 1004 by the drill jig fixing bolt assembly 9.

[0005] The drag platform 4 includes a drag platform fixing hole 401, an electric push rod fixing hole 402, a linear bearing 403, and a dragging rotary rod 404.

[0006] The power head 5 includes a drill chuck 501, a gearbox 502, and an electric motor 503.

[0007] The drill jig 7 includes a drill jig fixing hole 701, a positioning stop circle 702, and multiple cylinder drill jig holes 703.

[0008] The clamp assembly 10 includes an upper clamp 1001, a clamp clamping bolt assembly 1002, a lower clamp 1003, and a clamp fixing hole 1004. The upper clamp 1001 and the lower clamp 1003 are connected together through the clamp fixing hole 1004 and the clamp clamp clamping bolt assembly 1002 and are clamped and fixed on the cylinder 12.

[0009] The advantages of this utility model are that it can accurately and reliably drill the flange holes on the end face of hydraulic cylinders of different lengths, has a wide range of applicable models, is small in size, light in weight, low in cost, and is convenient to operate, debug and maintain.

[0010] The beneficial effects of this invention are that it improves the pass rate of drilling quality for flange holes on the cylinder end face, and also greatly improves production efficiency. The present invention will now be described in detail with reference to the accompanying drawings. Attached Figure Description

[0011] Appendix Figure 1 A front view of a drilling device for connecting flange holes to the end face of a hydraulic cylinder barrel.

[0012] Appendix Figure 2 Right view of a drilling device for connecting flange holes to the end face of a hydraulic cylinder barrel.

[0013] Appendix Figure 3 Top view of a drilling device for connecting flange holes to the end face of a hydraulic cylinder barrel.

[0014] Appendix Figure 4 A perspective view of a drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel.

[0015] Appendix Figure 5 A perspective view of a drilling device for connecting flange holes on the end face of a hydraulic cylinder.

[0016] Appendix Figure 6 A three-dimensional view of a power head for drilling a flange hole connection device on the end face of a hydraulic cylinder barrel.

[0017] Appendix Figure 7 A front view of a drilling jig for a drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel.

[0018] Appendix Figure 8 A cross-sectional view of a drilling jig for a drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel.

[0019] Appendix Figure 9A perspective view of a clamp assembly for a drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel.

[0020] In the attached diagram: 1—small frame, 2—electric push rod, 3—fixed guide rail, 4—dragging table, 5—power head, 6—sensor assembly, 7—drill jig, 8—drill bit, 9—drill jig fixing bolt assembly, 10—clamp assembly, 11—large frame, 12—cylinder, 13—center frame, 401—dragging table fixing hole, 402—electric push rod fixing hole, 403—linear bearing, 404—driving rotary rod, 501—drill chuck, 502—gearbox, 503—motor, 701—drill jig fixing hole, 702—positioning stop circle, 703—cylinder drill jig hole, 1001—upper clamp, 1002—clamp clamping bolt assembly, 1003—lower clamp, 1004—clamp clamp fixing hole. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of this utility model, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this utility model.

[0022] The instruction manual includes Figure 1 As shown: The cylinder 12 is positioned and clamped within two central supports 13, and can rotate within the central supports 13 but cannot move axially.

[0023] The instruction manual includes Figure 1 The instruction manual includes Figure 2 The instruction manual includes Figure 3 and the instruction manual Figure 4 As shown: The small frame 1 is fixed on the large frame 11, and two fixed guide rails 3 are provided on the small frame 1.

[0024] The instruction manual includes Figure 1 The instruction manual includes Figure 5 and the instruction manual Figure 6 As shown: the two linear bearings 403 on the platform 4 are connected to the two fixed guide rails 3. The power head 5 is positioned on the platform 4 through the platform fixing hole 401. The housing of the electric push rod 2 is fixed on the frame. The push rod of the electric push rod 2 is connected to the electric push rod fixing hole 402 of the platform 4.

[0025] The instruction manual includes Figure 1 and the instruction manual Figure 6 As shown: the drill bit 8 is fixed on the drill chuck 501 of the power head 5, the sensor assembly 6 is fixed on one side of the small frame and can control the drilling depth, and the two center frames 13 are positioned and fixed at the end of the large frame 11 away from the small frame 1.

[0026] The instruction manual includes Figure 1 The instruction manual includes Figure 2 The instruction manual includes Figure 3 The instruction manual includes Figure 4 and the instruction manual Figure 9 As shown: The clamp assembly 10 is fixed to the cylinder 12 by the upper clamp 1001, the clamp clamping bolt assembly 1002 and the lower clamp 1003. The positioning stop circle 702 of the drill jig 7 is positioned on the inner hole of the cylinder 12. The drill sleeve fixing hole 701 is connected and fixed together with the clamp fixing hole 1004 by the drill jig fixing bolt assembly 9.

[0027] The instruction manual includes Figure 5 As shown: The platform 4 is provided with a platform fixing hole 401, an electric push rod fixing hole 402, a linear bearing 403, and a dragging rod 404.

[0028] The instruction manual includes Figure 6 As shown: The power head 5 is equipped with a drill chuck 501, a gearbox 502 and an electric motor 503.

[0029] The instruction manual includes Figure 7 and the instruction manual Figure 8 As shown: The drill jig 7 is provided with a drill jig fixing hole 701, a positioning stop circle 702 and multiple cylinder drill jig holes 703.

[0030] The instruction manual includes Figure 9 As shown: The clamp assembly 10 is provided with an upper clamp 1001, a clamp clamping bolt assembly 1002, a lower clamp 1003 and a clamp fixing hole 1004. The upper clamp 1001 and the lower clamp 1003 are connected together through the clamp fixing hole 1004 and the clamp clamp clamping bolt assembly 1002 and are clamped and fixed on the cylinder 12.

[0031] The working process of a drilling device for connecting flange holes on the end face of a hydraulic cylinder is as follows: The cylinder 12 is positioned and clamped within two center frames 13, allowing it to rotate within the center frames 13 but preventing axial movement. The clamping assembly 10, based on the length of the drill jig fixing bolt assembly 9 and the thickness of the drill jig 7, is positioned and clamped onto the outer circle of the cylinder 12. The positioning stop circle 702 of the drill jig 7 is positioned on the inner circle of the cylinder 12. The two drill jig fixing holes 701 are connected to the clamping fixing holes 1004 on the clamping assembly 10 using the two drill jig fixing bolt assemblies 9, thus fixing the drill jig onto the cylinder 12. By rotating the cylinder 12 within the center frames 13 and laterally moving the rotating rod 404 of the rotating platform 4, the drill bit 8 in the drill chuck 501 on the fixed power head 5 is aligned with the cylinder drill jig hole 703 on the drill jig 7. After determining the drilling depth, the position of the sensor assembly 6 is adjusted. The motor 503 of the power head 5 is started, and the drill bit 8 begins to work. The electric push rod 2 is started, and the electric push rod 2 pushes the power head 5 and the drill bit 8, which are fixed on the table 4, to move vertically towards the cylinder end face along the guide rail 3. After drilling to the depth on the end face of the cylinder 12, the sensor assembly 6 sends a signal, and the electric push rod 2 moves in the opposite direction. After the drill bit 8 is pulled out of the cylinder drill hole 703 of the drill jig 7, the cylinder 12 is rotated by hand to align the drill bit 8 with another cylinder drill hole 703. The electric push rod 2 is started again, and the electric push rod 2 pushes the power head 5 and the drill bit 8, which are fixed on the table 4, to move vertically towards the cylinder end face along the guide rail 3. After drilling to the depth on the end face of the cylinder 12, the sensor assembly 6 sends a signal, and the electric push rod 2 moves in the opposite direction. After the drill bit 8 is pulled out of the cylinder drill hole 703 of the drill jig 7, the above actions are repeated until the end face flange hole on the cylinder 12 is drilled. The cylinder is then removed. A drilling device for connecting flange holes on the end face of a hydraulic cylinder is reasonably designed, compact in structure, easy to operate, accurate and reliable in drilling, has good interchangeability, and high positioning accuracy.

Claims

1. A drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel, characterized in that: include: The components include a small frame (1), an electric push rod (2), a fixed guide rail (3), a drag table (4), a power head (5), a sensor assembly (6), a drill jig (7), a drill bit (8), a drill jig fixing bolt assembly (9), a clamp assembly (10), a large frame (11), a cylinder (12), and a center frame (13). The small frame (1) is fixed to the large frame (11), and two fixed guide rails (3) are provided on the small frame (1). Two linear bearings (403) on the drag table (4) are connected to the two fixed guide rails (3). The power head (5) is positioned on the drag table (4) through the drag table fixing hole (401). The housing of the electric push rod (2) is fixed to the small frame (1), and the push rod of the electric push rod (2) is connected to the electric push rod fixing hole (402) of the drag table (4). The drill bit (8) is fixed on the drill chuck (501) of the power head (5), the sensor assembly (6) is fixed on one side of the small frame (1) and can control the drilling depth. The two center frames (13) are positioned and fixed at the end of the large frame (11) away from the small frame (1). The cylinder (12) is positioned and clamped in the two center frames (13) and can rotate in the center frames (13) but cannot move axially. The clamp assembly (10) is fixed on the cylinder (12) through the upper clamp (1001), the clamp clamping bolt assembly (1002) and the lower clamp (1003). The positioning stop circle (702) of the drill jig (7) is positioned on the inner hole of the cylinder (12). The drill jig fixing hole (701) is connected and fixed together with the clamp fixing hole (1004) through the drill jig fixing bolt assembly (9).

2. The drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel according to claim 1, characterized in that... The drag table (4) includes a drag table fixing hole (401), an electric push rod fixing hole (402), a linear bearing (403), and a dragging swivel (404).

3. The drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel according to claim 1, characterized in that... The power head (5) includes a drill chuck (501), a gearbox (502), and an electric motor (503).

4. The drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel according to claim 1, characterized in that... The drill jig (7) includes a drill jig fixing hole (701), a positioning stop circle (702), and multiple cylinder drill jig holes (703).

5. The drilling device for connecting flange holes on the end face of a hydraulic cylinder barrel according to claim 1, characterized in that... The clamp assembly (10) includes an upper clamp (1001), a clamp clamping bolt assembly (1002), a lower clamp (1003), and a clamp fixing hole (1004). The upper clamp (1001) and the lower clamp (1003) are connected together and clamped and fixed on the cylinder (12) through the clamp fixing hole (1004) and the clamp clamping bolt assembly (1002).

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